Battery charger



FIG. 1 is a front perspective view of a battery charger.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a front elevation view thereof.

FIG. 4 is a rear elevation view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a left side elevation view thereof.

FIG. 8 is a right side elevation view thereof.

FIG. 9 is a front perspective view with the lid open; and,

FIG. 10 is a front perspective view with the handle pulled up.

The broken lines shown in the drawings illustrate portions of thebattery charger that form no part of the claimed design.

CLAIM The ornamental design for a battery charger, as shown anddescribed.